       int grib_rg_256[] = {
        18,   25,   32,   40,
        45,   50,   60,   64,
        72,   72,   75,   81,
        90,   96,  100,  108,
       120,  120,  125,  135,
       144,  150,  160,  160,
       180,  180,  180,  192,
       192,  200,  216,  216,
       216,  225,  240,  240,
       243,  250,  256,  270,
       270,  288,  288,  288,
       300,  300,  320,  320,
       320,  324,  360,  360,
       360,  360,  360,  360,
       375,  375,  384,  384,
       400,  400,  400,  432,
       432,  432,  432,  432,
       450,  450,  450,  480,
       480,  480,  480,  480,
       486,  500,  500,  500,
       512,  512,  540,  540,
       540,  540,  540,  576,
       576,  576,  576,  576,
       576,  600,  600,  600,
       600,  600,  640,  640,
       640,  640,  640,  640,
       640,  640,  648,  675,
       675,  675,  675,  675,
       675,  720,  720,  720,
       720,  720,  720,  720,
       720,  720,  729,  729,
       750,  750,  750,  750,
       750,  768,  768,  768,
       768,  800,  800,  800,
       800,  800,  800,  800,
       800,  810,  810,  864,
       864,  864,  864,  864,
       864,  864,  864,  864,
       864,  864,  864,  864,
       864,  900,  900,  900,
       900,  900,  900,  900,
       900,  900,  900,  900,
       960,  960,  960,  960,
       960,  960,  960,  960,
       960,  960,  960,  960,
       960,  960,  960,  960,
       960,  960,  960,  960,
       960,  960,  972,  972,
       972,  972,  972, 1000,
      1000, 1000, 1000, 1000,
      1000, 1000, 1000, 1000,
      1000, 1000, 1000, 1000,
      1000, 1000, 1000, 1024,
      1024, 1024, 1024, 1024,
      1024, 1024, 1024, 1024,
      1024, 1024, 1024, 1024,
      1024, 1024, 1024, 1024,
      1024, 1024, 1024, 1024,
      1024, 1024, 1024, 1024,
      1024, 1024, 1024, 1024,
      1024, 1024, 1024, 1024,
      1024, 1024, 1024, 1024,
      1024, 1024, 1024, 1024,
      1024, 1024, 1024, 1024 };
